From the Lawrence Daily Journal-World for Oct. 31, 1971:
On this night of spooks and goblins, the Sunset Drive-In was offering the "Great Pumpkin Days Marathon," billed as "The Sincerest Marathon In Town." The fun was to begin at 7:30 p.m. with "Werewolves on Wheels," followed by "Simon -- King of the Witches" ("The Evil Spirit Must Choose Evil! The Black Mass ... The Spells ... The Incantations ... The Curses ... The Ceremonial Sex ..."). Boris Karloff starred in "Black Sabbath," showing at 10:40 p.m. Movie-goers could round out the night with "Destroy All Monsters," starting at half past midnight. Half-price admission was offered to anyone in costume.